Recent content by pasido

This is from Spivak Calculus 4th ed. Why are these two formulas equal? (1 + 2 + ... + [k + 1])2 = (1 + 2 + ... + k)2 + 2(1 + ... + k)(k + 1) + (k + 1)2 I'm especially confused about the right hand side. Where did 2(1 + ... + k)(k + 1) come from?

Homework Statement http://i.imgur.com/Rz0qB.png Homework Equations The answer is B, but I would like to know how to find the answer. Molarity = moles * volume The Attempt at a Solution Yep, I tried for 15+ minutes and couldn't get the darn units to cancel out. A worked out...

Homework Statement Given -Total Energy for Li \rightarrow Li ^{3+} = 1.960 * 10^{4} kJ/mol -First Ionization Energy of Li = 5.20 * 10^{2} kJ/mol Homework Equations Other than the equation in the image, I used the equation: Etotal = E1 + E2 + E3 The Attempt at a Solution Since Etotal and...